Glass-beveling machine.



No. 787,889. v PATENTED AUG 0. L. GOEHRING & w. TROOHE.

GLASS BEVELING- MACHINE. APPLICATION FILED MAR. 28. 1903.

6 SHEETSFSHLEET 2,'

NO MODEL.

(Human fox} ivll'uamm PATENTBD AUG; 2-5

0. L. GOEHRING & W. TROGHE.

GLASS BEVELING MACHINE.

APPLICATION FILED MAR. 28, 1903.

6 SHBETS-SEEET 8' NO MODEL.

JnLenFor 14 J W T W No. 737,389. I PATENTE'D AUG. 25, 1903. c. ,L. GOEHRING &w. TROGHE.

GLASS BEVELING MACHINE;

APPLOATIOL' FILED MAR 28 1903 a SHEETSFSHBET 4.

N0 MODEL.

. K PATENTED AUG. 25, 11903.1 0. L. 'GOBHRING & W. TROOHE.

GLASS BEVELING MACHINE.

APPLICATION FILED MAR. 28, 1903.

6 SHEETS-SHEET 5 1'10 momzL.

PATENTED AUG. 25 i903. 0. L. GOEHRING & W. TROGHB.

GLASS BEVELI'NG MACHINE:

APPLIOATION FILED MAR. 28, 1903.

6 SHEETS-SHEET 6.

N0 MODEL.

ME Zf Z.

siren dramas Patented August 325, 1993.

Parser seiner or Anson, euro SAID SAID concerns.

GLASS BEVELENG iiiiAGt-iihlh.

SPECIFICATJ ION forming part of Letters Patent No. 737,389, dated August 25, 1903. Application filed March 28, 1903. Serial No. 150,021 (No model.)

To aZZ whom it may concern:

Be it known that We, CHARLES ll. GOEHR- tING and WILLIAM TROOHE, of Akron, in the county of Summit, State of Ohio,have invent- 5 ed certain new and useful Improvements in Glass-Beveling Machines; and we do hereby declare the following to be a full, 'cleaigand exact description of the same, reference being had to the accompanying drawings, forming -o a part of this specification, and to the letters of reference marked thereon.

This invention relates to that class of machinerydesigned for forming hevels or inclines on glass plates and other objects of frangible material. The class to which the presentapparatus belongs is well exemplified by the machine illustrated in our contem p0 raneous application, Serial No. 110,660, filed June 7,1902,as a continuation of application, Serial No. 48,342, filed February 21, 1901; and the objects of the present invention are to improve the general arrangement and construction of the mechanism, whereby the work may be performed expeditiously, a greater variety of work performed with asingle machine, and the resultant product present a fiat as contradistinguished from a concave bevel.

. The invention consists in certain noveltietails ofconstruction andcomhinations and arrangements of parts, all as will be now de scribed, and pointed out particularly in the appended claims.

Referring to the accompanying drawings, Figure 1 isa front elevation of a machine embodying the present improvements, portions being broken away. Fig. 2 is a side elevation looking at theright-hand sideof the machine. Fig. 3 is a similar view looking at the opposite side of the machine, Fig. 4 is a top plan view of the grinder or stone with'its frame and driving mechanism. "Fig. 5 is a top plan view of the driving mechanism for the table or work-support. .Fig. 6 is asectional elevation showing the cross-frame and side guides for the grinder-frame, with certain parts of the mechanism for controlling said frame. Figs. 7and 8 are elevations of one'of the ad whereby said support may be njustable eccentrics, showing the means for adjusting the throw and angular position of the same. i Likeletters of reference in the several figures indicate the same parts.

The letter A. indicates the main frame of the machine,and B a primary work-table mounted in the main frameto move vertically throiigh the medium of slides l3 and guides A at each side, Figs. 1 and 5. The primary table B supports secondary tables 33 B B the table B being mounted in slideways on the table B to move transversely, While the tables B and B are mounted in slideways on the table B and B respectively, to slide forwardly and hackwardly. The table B is adjusted on the table B by means of a screw h, controlled man ualiy by a handle I) and cooperating with a; nut b held by a mechanism to be presently described and sometimes employed to give a periodic movement to the said table, as will he presently described. The table B is adapted to he moved, adjusted, or TGGiPIO? sated from side to side by a screw 5 journaled on the table B and having atthe end reverse miter-gears 12 .11

adapted to be clutched to theshaft by a reversing mechanism, eaid miter-gears being in mesh with a gear Z) on the forward end of a shaft h ex tending hack and journaled at itsrear end in a swinging hearing, Z), Figs. 2 and 5. Table B is adjusted manually by a rack and pinion b b, the pinion being mounted on a shaft b, Fig. 3, extending out to one side of the table andadapted for the application of a handle thereto.

On the table B" there is mounted a rotary support B upon which the Work or glass to he beveled is placed, the support being/made rotary primarily to facilitate the turning of the plate for presenting diderentedges to the grinder or stone, and, it may be turned by handles 13 and locked by anyapproved looking devices.

Surrounding the support E is a tank or water-pan 6, having a ceiitral stuffing-box throughwhich the stem of the support passes, rotated With'.

out turning thetank. Said tank is preferablymade of sufficient size to receive a plate i of the largest size the machine will handle and is of such depth that the glass may be completely submerged during the grinding of the bevel. v v

The grinder or stone is indicated by the letter D, and, as shown, it is cylindrical. It is of a length not less than the length of the edge to be beveled and is preferably of somewhat greater length in order that the whole length of edge may be acted on simultaneously and uniformly. This grinder or stone is carried by a grinder-frame E, pivotally mounted at therear end on an axis coincident with the axis of a drive-shaft F, whereby the frame and stone may be raised and lowered either by the driving mechanism in the operation of the machine or manually for permitfting of the insertion, removal, or turning of theglass: For raising and lowering the frame manually a cable E, connected with the frame by a yoke E and passing over pulleys E to a Windlass E, is employed. By turning the Windlass the frame and stone may be raised or lowered, and as said Windlass preferably embodies a worm-wheel and screw E the frame will be held or-supported in any position to which it may be adjusted. In normal position ready for operation the frame is in its lowermost position, in which position itis guided and supported by side arms G, extending upwardly from the main frame, as shown clearly in Figs. 2, 3, and 6. While the grinder or stone is supported by the frame E, it is nevertheless bodily movable independently thereof both longitudinally and transversely of its axis, such movements being made possible by journaling the shaft D, carrying the stone, in bearings 13*, mounted to slide in ways D 011 the frame. The shaft may both rotate and move longitudinally in its bearings, and the latter movement is preferably dependent upon the former, being secured by mounting hubs having cam-grooves D therein on the ends of the shaft and providing screws D carried by housings D on the frame, for cooperation therewith. The shaftand stone are rotated bysprocket-wheels located on the shaft D and drive-shaft F, respectively, and connected by'sprocket-chains D whichwill permitof the aforesaid limited movements of the stone. The transverse bodily movements are imparted through driving connections with a counter-shaft H, ro-- tated-by a train of gearing I from the main drive-shaft F, such driving connections being as, follows: Lever-arms K, Fig. 4, are pivoted on the frame E and connected at their outer ends by links K with the bearings D while at their inner ends they are jointed to a slide K having a socket in the under side for the reception of the rounded upper end of a vertical lever K, Figs; 6, 2., and 3, journaled centrally on a cross-frame L. At its lower end the lever K is connectedby an adjustable rod K.with an eccentric-strapsurrounding an adjustable eccentric K 'on the shaft H, Two other eccentrics corresponding to the eccentric K are located on the shaft H, said eccentrics being lettered M Fig. 5, and are located at each end of the shaft and are for the purpose of giving a periodic vertical movement to the stone and frame E, as will be presently described. All of these eccentrics correspond in construction and mode of adjustment with the construction illustrated in Figs. 8 and 7.. 'From these figures it will be seen that the angular position of the eccentric may be adjusted by a screw M, through which it is connected with the shaft, and its throw may be adjusted by a V screw M through which the two parts of the eccentric are connected together, as is common in the arts, and whereby the eccentric may, if desired, be set on a dead-center or so as to'have no throw, in which position it will be inoperative. The eccentricsv M are surrounded by straps connected by adjust-able rods M Figs. 1, 2, and 3, with the rear ends of levers M Figs. 2, 3, and 6, pivoted on the side arms G and at their forward endsbearing rollers Mi'underlying the sides of the stone-frame and adapted to give said frame and stone a periodic up-and-down movement, and such movement may be made to synchronize with the back-and-forih movement of thesto'ne, thereby giving a resultant diagonal movement in the plane of the bevel being formed. By changing the angular position.of the eccentrics the movement of the stone may be made to correspond to any desired in clination of bevel desired. The transverse movements of the stone may be entirely arrested either by setting the cocoa one of the gears of the train of gearing I out of mesh, as by moving a gear-wheel longitudinally on its shaft.

It is for some purposes or classes of work desirable to move the work or glass rather. than the stone or to move the work in one direction and the stone in another direction to secure a transverse movement in the plane of the bevel, and the present machine embodies a structure wherewith the most advantageous movements for the work in hand may be employed. The work may be moved back and forth vtoward and from the stone and the stone simply raised and lowered, or the vertical and back-and-forth movement of the work may be combined and the stone held against transverse movemcntgand all of the mechanism for accomplishing these movements is driven from the main drive-shaftF; but theconnectionsfor moving the work toward and from the stone and vertically are preferably such that each may be capable of individual adj ustment. For moving the work toward and from the. stone the slide-nut b beforereferred to and with which the screw 0 12 engages, is connected by a' connecting-rod N with a crank N, adjustable by means of too.

1mg bevel-gears O O i the horizontal and vertical screw N one. shaft N deriving its motion fromtheshaft H through the medium of a side shaft 0, a short shaft 0, and connect The crank -N may be set at the center, in which case it will hold the slide-nut in fixed position, or it may be given any desired throw to move the work toward and from the stone to the desired extent. The shaft 0 may be utilized to eifecta vertical movement or tosynchronize movement of the work through a connection with the tablevcontrollingshaftP. Theconnection referred to is formed through a pair of bevel-gears'O", one of which may be made fast by a set-screw working in a groove in the controllingshaft "P, so as to permit the shaft to slide longitudinally and at the same time be readily detached should it be desired to elevate the table manually or by other mechanism to be now described.

The shaft 0 forms a driving connection between the tablecontrolling shaft P and cran kshaft N Thus if the gears 0 0 be thrown out of action, as by loosening them on their shafts by backing 0d the set-screws, the rotation of theshaft P will cause a rotation of working in keyways in the shaft.

the crank, thereby moving the work toward or from the stone or grinder. The table-controlling shaftvP carries a pair of bevel-gears P, capable of being secured to rotate therewith, while permitting the shaft to move longitudinally, as by set-screws P Said gears are held against longitudinal movement with the shaft by brackets P on the main frame, and they mesh with gear-wheels P on the upper ends of screw-shafts P journaled in the main frame and having nuts P working thereon, said nuts forming part of or being connected with the slides B, upon the upper ends'of which the primary table B is mounted. Shaft P is provided with a hand-Wheel Q, by means of which it maybe rotatedmanually, audit is also provided with a shifting-lever Q, by means of which it may be shifted longitudinally to throw in an automatic differ ential feed, whereby thelwork may he automatically fed rapidly duringthe ini tial grinding, slowly during the final grinding, and finally the feed entirelyarrested in completing the operation. This automatic difierential-feed mechanism is in the machine illustrated connected with the left-hand portion of the shaft P and corresponds in construction and operation with the mechanism illus- '-tr'ated in the before-mentioned application with certain minor differences in details of constr lction, as will presently appear.

Located on the shaft P is a worm-wheel R, free to rotateindependently of the shaft, but adapted to be coupled therewith by a clutch, one section R of which is fast on the shaft and is moved into engagement by the aforesaid longitudinal movement of the shaft. The worm-wheel R is driven by a worm R speed until at the final released by the tripping of the dog, and the on. a shaft R rotated by a train of gears R deriving motion from a shaft R havingat its rear end a friction-disk R, against which bears a friction-wheel R rotated by .a shaft R but free to slide longitudinally thereof, so as to eugage'the disk at a'point more or less remote from its center, and thereby gagement with the friction-wheel; but when the shaft P is moved longitudinally the clutch R" or an enlargement or collar is oving therewith engages a pivoted gate S and moves the same'on its center. One arm S of the gate, Fig. 5, engaging the collar 8*, Figs. 3 and 5,

moves the shaft R. longitudinally, throwing the disk up againstthe friction-wheel- A spring S is preferably interposed between the collar S and shaft, whereby the disk is held against the wheel with an elastic pressure, andthe gate mayfmove or swing beyond its normal position to allow the collar on the shaft]? to pass.v When the collar or clutch moves the gate, as described, a dog or catch S Fig. 5,swings in behind the gate and holds it in place, and to arrest the feed it is only necessary to release the dog or catch, when the spring S will assert itself and move the disk out of engagementwith the friction-wheel. To release the dog, an adjustable projection S is mounted on the shaft Randso located as to engage said'dog and release it at a predetermined point-in the rotation of the shaft. This dog and its operating mechanism aresimilar to that described in the oefore-mentioned applications. The shifting of the frictionwheel toward and from the center of the disk is also effected automatically by .the movement of the shaft P. Thisis accomplished by providing a shifter-arm '1 for said wheel, the arm being pivoted at the upper end and connected at an intermediate point by a con-f necting-rod T with an adjustable crank '1 on the end of a shaft Thin gear with the'shaft P through bcvel-gears T As the shaft P is rotated "to elevate the work it will gradually shift the friction-wheel toward the periphery of the disk,'thereby gradually reducing the feedis entirely arrested.

of the table and work to be manually controlled even should the gears Pbereleased from the shaft P by unscrewing the screws In order to enable the vertical adjustment IOC movement the gate is I P the said gears P are provided with other gear-wheels U, meshing with gears U on a shaft'U and the shaft U is adapted to be rotated by a hand-wheel U on a shaft U and onnnected with the shaft U by bevel-gears U The cross-feed of the carriage B ,.as before explained, is obtained by the use of a screw b adapted to be rotated in one direction or the other by gears b b, meshing with gear bon shaft U. The shaft 1) is rotated through the medium of a pair of gear-wheels b connecting the shaft b with a cross-shaft 12 and the latter is rotated by a belt I), running .ing therewith, was to effect an automatic shifting of the clutch-section. The projection on the-carriage is lettered V and for cooperation therewith adjustable buttons or arms V are mounted on the rod. There are pref erably four of the projections or arms on the rod, two of which are operative when the rod is in one angular position of adjustment and theother two of which are operative when the rod is in another angular position of adj ustment, whereby provision is made for antomatic operation on rectangular plates having long and short sides. The angular position of the rod may be changed by a handle V at its right-hand end. In operation when the work is turned to present a long or a short edge to the stone the handle V may be grasped and the shifter-rod given a partial rotation to bring the proper projections into the path of the projection V on the carriage. The stone or grinder may be driven in either di-' rection, but is-preferably rotated toward the edge of the'work, and the power for rotating the main drive-shaft may be imparted through belts W W, running over fast and loose pulleys W on said drive-shaft, or any other drive-gearing of usual type may be employed.

With the mechanism described it will be noted that the work or the stone may be moved or the movements of the work and stone combined to produce a movement of the grinding-point transversely of theaxis of the stone and in the plane of the bevel,'so as to produce a flat as contradistinguished from a concave bevel; but in every instance there ispreferably combined therewith a movement of the stone and work with relation to each other in the plane of the bevel,

"but longitudinally of the axis of the stone,.

whereby the resultant action at the grindingpoint is an .irregular or diagonal out, which i will give a smooth finish or at least prevent the formation of deep scratches or ridges from the successive action of the same portion of the stone on the same portion of the bevel. In operation the whole length of the bevel is acted on simultaneously, and the whole of the plate is kept immersed beneath the surface of a body ofv water, underwhich conditions it is found that not only is the percent- The shifter-rod age of breakage greatly reduced, but the grinding may be forced, particularly during the initial part of the work, without danger of chipping the edge or breaking the plate, and owing to this fact there results a great saving of time. The length of the stone and its movements are preferably such as that the surface of the stone is uniformly acted on, and the wear is therefore practically regular; but in case there should be uneven wear-due to any cause or irregular spotsdevelop in the stone provision is made for redressing the surface of the stone without removing it from the machine. The mechanism for accomplishing this end is shown in Fig. 4 and consists of a frame ,X, adapted to be secured to the frame E in front of the stone and having slideways-for a slide or carriage X, carrying a diamond or cutting-tool X axis of the stone by a screw-shaft X The shaft receives its motion from themain driveshaft F through direct and crossed belts X X", running over pulleys on the two shafts, the pulleys on the drive-shaft preferably being loose, but adapted to be clutched thereto by a clutch-section X, which maybe shifted manually to reverse the movement of the carriage and dressing-tool.

Having thus described our-invention, what we claimas'new, and desire to secure by Letters Patent, is-

1. In a glass-beveling machine, the combination with a rotary cylindrical grinder, and driving mechanism therefor, of a work-sup- The carriage is driven parallelwith the port mounted in ways to move horizontally I and vertically in planes parallel with the axis of the grinder and at right angles to each other and a driving mechanism cooperating with said work-support to simultaneouslyeffoot said movements whereby the work is moved in a plane parallel with the plane of the bevel and a flat as contradistinguished from a concave bevel is produced; substantially as described.

2. In a glass-beveling lIlfiChlllGlSllCh as described, the combination with the cylindrical grinder, of a work-support carriage mounted inways on a primary carriage to move hori-.

zontally toward and from' the grinder, a primary carriage mounted in ways to move vertically," a drive-shaft and independent connections between said drive-shaft and carriages for moving the same simultaneously;

substantially as described.

3. In a glass-beveling machine such as de;

scribed, the combination with the'grinder' movable bodily in a plane' at right angles to its axis, a drive-shaft and connections there with for rotating and moving the: grinder.

bodily as described, of a work-holder, a car.-

riage on which the work-holder is mounted I teases 4. In a glass-beveling machine, the combi nation with the rotary grindermovablebodily in a plane at right angles to its axis and a d ri ving-shaft with driving connections for rotating and moving the grinder bodiiy, of a work.- holder carriage mounted in ways to move to Ward and from the grinder, a crank rotated by the drive-shaft and a connectingrod between said shaft and carriage; substantially as decribed.

'5. In a glass-beveling machine, the combination with the rotary grinder movable bodily in a plane at right angles to its axis, and a driving-shaft with driving connections for rotatingand moving the grinder bodily, of a work-holder carriage mounted in ways to move toward and from the grinder, an adjustable crank rotated by the drive-shaft and a connecting-rod between said shaft and carriage; substantially as described.

(5. In a glass-beveling machine the combination with the work support, the rotary grinder, the pivoted grindenfram'e and the bearings in which the grinder is journaled movable toward and from the axis of the frame, of an eccentric-shaft, eccentrics thereon and connections between said eccentrics and grinder-frame and bearings in which the grinder is journaled whereby the grinder may be moved bodily in vertical or horizontal direction; substantially as described.

7. In a glass-beveling machine, the combination with a work-snpport,a pivoted grinderframe, bearings movably supported on said frame and a grinder journaled in said bearings, of an eccentri.c-shaft, vertical and horizontal lever-arms cooperating with the said bearings and frame respectively for moving the same at right angles to the axis of the grinder, and eccentrics on said shaft with connections between the eccentrics and leverarms; substantially as described.

8. Ida glass-beveling machine, the combi nation with a work-support, a pivoted grinderframe, bearings movably supported on said frame, a grinder journaled in said bearings and a slide connected with said bearings, of a lever cooperating with said slide and an'eccentric for reciprocating said lever, whereby the and the frame swung on its pivots; substantially as described. I

9. Ina glass-bevelingmachine, the combination with a work-support, a pivoted grinder frame, Bearings movably mounted on said frame, a grinder journalcd in said bearings, and an eccentric with connections between said eccentric and bearings for moving the latter, of side arms constituting guides for the grinder-frame, levers pivoted on said side arms and cooperating with the frame to elevate said frame and grinder and eccentrics with connections between the eccentrics and levers; substantially as described.

I 10. In a glass-beveling machine, the combination with a rotary grinder, a vertically-movable frame in which the grinder is mounted *uder may be given a bodily movement and driving mechanism for moving said frame vertically, of a work support movable toward and from the grinder, a manually-controilcd screw for adjusting the positionv of theworlr-support, a slide-nut with which the screw engages, a driven crank and a connection between said crank and slide nut whereby the work-support may be manually adjusted and also given a periodic reciprocation in the same direction; substantially as .w'nich in turn carries the work-support and gearing connecting said primary and secondary carriages whereby the ratio oi movement of said carriages may be maintained and a driving mechanism for moving said carriages; substantially as described.

12. In a glass-beveling machine, the combination with the cylindrical. rotary grinder-and the support for presenting an edge of the work to the grinder parallel with the axis of the grinder, of a carriage for said support movable horizontally toward and from the grinder, a crank-shaft for moving said carriage horizontally and a diiferen'tial drivegear for said crank-shaft whereby the work may be advanced toward the grinder at a differential speed; substantially as described.

13. In a glass-beveling machine, the combination with the cylindrical rotary grinder and the support for presenting an edge of the work to the grinder parallel with the axis of the grinder, of a verticallyunovable primary carriage, a horizontally-movable secondary carriage mounted on the primary carriage and on which the support is mounted, a car riage drive-shaft, gearingbetween said driveshaft and the primary and secondary car.

riages and a differential driving mechanism for said shaft, whereby the carriages may be advanced at differential speed; substantially as described.

14. In a glass-beveling machine, the combination with a cylindrical rotary grinder and a support for presenting an edge of the work to the grinder parallel with the axis of the grinder, of a vertically-movable primary carriage, a secondary carriage mounted to reciprocate thereon horizontally and in direction parallel with the axis of the grinder, a third carriage mounted on said secondary carriage to move toward and from the grinder and on which the support is mounted, a drive-shaft and gearingintermediate said drive-shaft and said carriages whereby all of said carriages may be simultaneously moved in presenting the work to the grinder; substantially as described.

15. In a glassbeveling-machine, the combinatlon with the cylindrical rotary grindor,and'

e 4 I verses work-support, of the vertically-movable primary carriage, a secondary reciprocatory carriage mounted thereon and movable parallel with the axis of the grinder, an elevating mechanism for the-primary carriage and a driving mechanism for the secondary carriage embodying reversing-gearing and an operat- 'ing-shaft journaled in a pivotal bearing whereby the driving connection is maintained regardless of the adjustment of the primary carriage; substantially as described.

16. In aglass-grinding machine, the combination with the cylindrical rotary grinder and work-support, of a primary carriage movable in a vertical plane, a secondary carriage mounted thereon and movable in a horizontal plane, a third carriage mounted on the second and movable at right angles to the movement thereof, a common drive-gear for the primary and one of said secondary carriages and an independent drive-gear for the other one of said secondary carriages em'bodying a reversing mechanism; snbstantiallyas' described. 1

17. In a glass-beveling machine, the combination with the grinder and worksupport adapted. to be rotated to present different edges of the work to the grinder, ot' a carriage for said support movable horizontally parallel with the axisof the grinder, a driving mechanism for reciprocating said carriage, a

reversing-gear in said driving mechanism and a controlling-rod therefor having pairs of pro-' jections thereon with which the carriage cooperates to shift the rod, said pairs of projections being arranged in difierent angular positions on the rod whereby by giving said rod a partial rotation one or the other of said pairs of projections may be moved into operative position to give a carriage movement corresponding to the length of the edge 

